CN102233730A - Liquid ejecting head, liquid ejecting head unit and liquid ejecting apparatus - Google Patents
Liquid ejecting head, liquid ejecting head unit and liquid ejecting apparatus Download PDFInfo
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- CN102233730A CN102233730A CN2011100837703A CN201110083770A CN102233730A CN 102233730 A CN102233730 A CN 102233730A CN 2011100837703 A CN2011100837703 A CN 2011100837703A CN 201110083770 A CN201110083770 A CN 201110083770A CN 102233730 A CN102233730 A CN 102233730A
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- liquid
- manifold
- heating portion
- ink
- jet head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2/14274—Structure of print heads with piezoelectric elements of stacked structure type, deformed by compression/extension and disposed on a diaphragm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2002/14419—Manifold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/08—Embodiments of or processes related to ink-jet heads dealing with thermal variations, e.g. cooling
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- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
The invention relates to a liquid ejecting head, a liquid ejecting head unit and a liquid ejecting apparatus. The liquid ejecting head includes a pressure generation chamber which fluidly communicates with a nozzle opening through which liquid is discharged, a pressure generation unit which causes pressure change on liquid in the pressure generation chamber, a manifold which serves as a liquid chamber common to a plurality of the pressure generation chambers, a flexible film which is configured to cover the manifold so as to absorb a pressure change generated in the manifold, and a heat generation unit which is formed on the flexible film at a region opposed to the manifold and is made of a pattered metal.
Description
The full content of the Japanese patent application 2010-77515 that on March 30th, 2010 proposed is incorporated into this paper by reference.
Technical field
The present invention relates to jet head liquid, liquid ejecting head unit and liquid injection apparatus from the nozzle opening atomizing of liquids, particularly ejection is as ink jet recording head, ink jet recording head unit and the inkjet recording device of the ink of liquid.
Background technology
For example, as opened by the Japanese documentation spy 2008-55716 communique disclosed, in ink jet recording head, be the high viscosity ink of representative in order to spray with the UV ink, the ink on ink feed road is heated make its viscosity reduce (for example referring to Patent Document 1).The ink jet recording head of patent documentation 1 is set at the liquid flow path in the head that warm water flows therein that adds of the ink that is used to heat, and the ink that viscosity reduces stably flows in the ink feed road, therefore can access the ejection characteristic of good ink.
In the ink jet recording head of patent documentation 1, by coming heating ink by the hot water that adds that is set at after an external heated device heats.Therefore, be subjected to external environment influence easily and the temperature change before the pressure generating chamber in arriving head sometimes, even also can't make the temperature of the ink in the head become the temperature of hope by the temperature that is set at sensor external control warm water.There is following problem in this case: can't make ink become the viscosity of hope, can not obtain good ejection characteristic.
In addition, such problem is not limited to spray the situation of full-bodied ink, exists too in the ink jet recording head that the ink lowering viscousity is sprayed.In addition, just do not spray the ink jet recording head of ink, exist too in the jet head liquid of the liquid beyond the ejection ink.
Summary of the invention
Jet head liquid comprises: pressure generating chamber is communicated with the nozzle opening of ejection liquid; The pressure generation unit changes the pressure of the liquid in the described pressure generating chamber; Manifold, described menifold are the shared liquid chambers of a plurality of pressure generating chamber; Flexible film constitutes at least a portion that covers described manifold; And heating portion, be formed on relative with the described manifold zone on the described flexible film and form by metal pattern.
Another way of the present invention provides a kind of liquid injection apparatus, has above-mentioned jet head liquid or above-mentioned liquid ejecting head unit.
Description of drawings
Fig. 1 is the schematic drawing of the tape deck that relates to of an embodiment of the invention;
(a) of Fig. 2 and (b) be the sectional view of the record head that relates to of embodiments of the present invention 1;
Fig. 3 is the plane of the hermetic sealing substrate that relates to of embodiments of the present invention 1;
Fig. 4 is the plane of the hermetic sealing substrate that relates to of embodiments of the present invention 2;
Fig. 5 is the block diagram that is used to illustrate the control part of embodiments of the present invention 2;
(a) of Fig. 6 and (b) be the plane of the hermetic sealing substrate that relates to of another embodiment of the present invention.
The specific embodiment
The present invention will be described in detail based on embodiment below.
First embodiment
Fig. 1 is the stereogram of simple formation of inkjet recording device that an example of the liquid injection apparatus that relates to as embodiments of the present invention 1 is shown.
As shown in Figure 1, the inkjet recording device I as an example of liquid injection apparatus has ink jet recording head 100 described later.Specifically, as shown in Figure 1, head unit 1A and 1B with ink jet recording head 100 releasably are provided with box 2A and the 2B that constitutes the ink feed unit, the carriage 3 that this head unit 1A and 1B be installed is set on the bracket axle 5 freely moving axially, and described bracket axle 5 is installed on the apparatus main body 4.This head unit 1A and 1B for example spray black ink constituent and color inks constituent respectively.
And the driving force of CD-ROM drive motor 6 is delivered to carriage 3 via not shown a plurality of gears and timing belt 7, and the carriage 3 that head unit 1A and 1B have been installed thus moves along bracket axle 5.On the other hand, on apparatus main body 4, be provided with platen 8, be wrapped on the platen 8 as the recording paper S of the recording mediums such as paper that provide by not shown paper feed roller etc. and be transported along bracket axle 5.
Here, the ink jet recording head 100 that is installed on such inkjet recording device I is described.(a) of Fig. 2 be the jet head liquid that relates to as embodiments of the present invention 1 an example ink jet recording head pressure generating chamber length to sectional view, (b) of Fig. 2 is the major part sectional view of short of the pressure generating chamber of ink jet recording head.
As (a) of Fig. 2 with (b), stream forms substrate 50 and is made of monocrystalline silicon substrate, divides the pressure generating chamber 52 that forms by a plurality of next doors 51 and is set up in parallel in the top layer of one face side part at the width (short) that stream forms substrate 50.In addition, be used for to each pressure generating chamber 52 provide as the manifold 53 of the ink of an example of liquid via as the ink feed road 54 of an example of liquid supply port and with the length of each pressure generating chamber 52 to an end side be communicated with.That is, this manifold 53 becomes the shared liquid chamber of each pressure generating chamber 52.In addition, the opening surface side that stream forms the pressure generating chamber 52 of substrate 50 is sealed by oscillating plate 60, its another side side be bonded with via bonding agent or heat fusing film nozzle opening 55 wear wherein form the nozzle plate 56 of an example of parts as nozzle.In the present embodiment, in stream formation substrate 50, be provided with the liquid flow path that comprises pressure generating chamber 52, ink feed road 54 and manifold 53.
The oscillating plate 60 that is formed on the stream formation substrate 50 is for example formed by the composite plate of elastic membrane 61 and support plate 62, described elastic membrane is made of pliability materials such as resin moldings, described support plate 62 these elastic membranes 61 of supporting, for example be made of metal material etc., elastic membrane 61 sides form substrate 50 with stream and engage.For example, in the present embodiment, elastic membrane 61 is that PPS (polyphenylene sulfite, polyphenylene sulfide) film about number μ m constitutes by thickness, and support plate 62 is that stainless-steel sheet (SUS) about tens of μ m constitutes by thickness.
In addition, in the zone relative of oscillating plate 60, be provided with the top ends of piezoelectric element 11 and the island portion 59 of its butt with each pressure generating chamber 52.That is, be formed with thickness in the relative zone of the periphery with each pressure generating chamber 52 of oscillating plate 60, be respectively arranged with island portion 59 in the inboard of this thinner wall section 64 than other regional thin thinner wall section 64.
In addition, in the present embodiment, be provided with flexibility (compliance) portion 65 of similarly having removed support plate 62, in fact only having constituted by elastic membrane 61 by etching with thinner wall section 64 in the zone relative of oscillating plate 60 with manifold 53.That is, the peristome that the support plate 62 of oscillating plate 60 has the impenetrating thickness direction in the zone relative with manifold 53, the zone relative with manifold 53 of elastic membrane 61 is flexible part 65.In addition, this flexible part 65 (flexible film) is constituted as can be crooked, play following effect: when producing pressure changing in manifold 53, the elastic membrane 61 by this flexible part 65 deforms absorption pressure to change, and always remains the pressure in the manifold 53 constant.
As mentioned above, in the present embodiment, the opening surface side that stream forms the pressure generating chamber 52 of substrate 50 is sealed by oscillating plate 60, and promptly manifold 53 is sealed by oscillating plate 60.And, the zone relative on the elastic membrane 61, be that flexible part 65 is provided with the heating portion that is made of metal pattern with manifold 53.
Here, heating portion is had been described in detail.Fig. 3 is the plane of the hermetic sealing substrate (oscillating plate 60) that relates to of embodiments of the present invention 1.
As shown in Figure 3, oscillating plate 60 is made of elastic membrane 61 and support plate 62.In addition, oscillating plate 60 is provided with and runs through the ink feed hole 66 that its thickness direction supplies to manifold 53 liquid.
In addition, as mentioned above, support plate 62 has the peristome of impenetrating thickness direction in the zone corresponding with manifold 53, and exposes elastic membrane 61.The exposed portions serve of this elastic membrane 61 is a flexible part 65.And the flexible part 65 of elastic membrane 61 is provided with the heating portion 67 that is made of metal pattern.That is, be provided with the heating portion 67 that constitutes by metal pattern in the zone relative of elastic membrane 61 with manifold 53.This heating portion 67 is connected with not shown power supply, can apply voltage.
The shape of heating portion 67 is not specially limited, and the heating portion 67 of present embodiment is a thread like body, is provided on the elastic membrane 61 crooked.By adjusting the shape of heating portion 67, can adjust the caloric value of heating portion 67.For example, by the width that makes heating portion 67 diminish or length elongated, resistance is risen, thereby make the heating quantitative change many.In addition, said here length is meant the length of the heating portion 67 that is arranged on the zone relative with manifold 53.By adjusting the interval (pitch) of sinuous heating portion 67, can adjust the length of heating portion 67.
The material of heating portion 67 is not specially limited, and can use various metals.In the present embodiment, heating portion 67 is formed by the metal material that constitutes support plate (fixed part) 62.In other words, in the present embodiment, be provided with by constituting with support plate 62 same materials but not with the continuous heating portion 67 of support plate 62.The heating portion 67 of present embodiment can form when forming peristome on support plate 62 simultaneously.
Here, carry out simple explanation about the formation method of heating portion 67.At first, form oscillating plate 60 by on a face of support plate 62, forming elastic membrane 61.And, on support plate 62 and faces elastic membrane 61 opposition sides, for example form predetermined resist pattern (photo resist pattern) by photoetching (Photolithography) method, by via this resist pattern to support plate 62 patternings, elastic membrane 61 is exposed.Specifically, remove the support plate 62 in the relative zone of the periphery with each pressure generating chamber 52 of zone relative and oscillating plate 60, elastic membrane 61 is exposed with manifold 53.At this moment, as shown in Figure 3, form heating portion 67 in the mode that keeps in the zone relative with support plate 62 discontinuous metal patterns with manifold 53.Heating portion 67 forms by photoetching process, even Fu Za shape also can form accurately thus.
In addition, in case heating portion 67 only is formed on the zone relative with manifold 53, then flexible part 65 can be retained as towards manifold 53 sides or towards with the state of manifold 53 side opposition side overbendings.Therefore, the distortion when having produced pressure in manifold 53 can fully not carried out, fully absorption pressure.But continuously outside this zone and extend and be provided with, therefore this extra-regional heating portion 67 bears the effect as the support unit of the heating portion 67 in this zone from the zone relative with manifold 53 in this heating portion 67.Specifically, the position from the periphery of manifold 53 to its outside of the heating portion 67 in this zone is formed slightly than the heating portion 67 of the central authorities in this zone.
When above-mentioned heating portion 67 is applied voltage, 67 heatings of heating portion, the ink of manifold 53 is heated by this heating.Thus, use the viscosity that also can make ink under the situation of full-bodied ink to reduce, can improve the flow regime of ink, and be supplied to nozzle opening 55.Therefore, can suppress the difference of the spray volume of each nozzle, from the ink droplet of each nozzle opening 55 with the uniform amount of even velocity ejection.
On oscillating plate 60, be fixed with head capsule body 70 with ink feed road, described ink feed road is an example on the liquid supply road that is connected with print cartridge as an example of not shown a plurality of liquid storage, and is determined scope accurately and is fixed with piezoelectric element unit 10 in this head capsule body 70.Promptly, head capsule body 70 is provided with the accommodation section of running through 71, an inner surface in this accommodation section 71, the top of each piezoelectric element 11 of piezoelectric element unit 10 and each island portion 59 butt also are fixed in each island portion 59, and described island portion 59 is set at the zone corresponding with each pressure generating chamber 52 on the oscillating plate 60.
In the present embodiment, piezoelectric element 11 is integrally formed in a piezoelectric element unit 10.Promptly, formation is vertically alternately pressed from both sides into sandwich-like and the piezoelectric element formation parts 13 of lamination with piezoelectric material layer 15 and electrode formation material 16,17, forms each piezoelectric element 11 by these piezoelectric element formation parts 13 are divided into the broach shape accordingly with each pressure generating chamber 52.That is, in the present embodiment, a plurality of piezoelectric elements 11 are integrally formed.And, not to the vibration of this piezoelectric element 11 (piezoelectric element form parts 13) produce help non-active region, be that the base end part side of piezoelectric element 11 is fixed on the fixing base 14.And, do not illustrate, but near the base end part of piezoelectric element 11, with the face of fixing base 14 opposition sides on be connected with circuit substrate 30, described circuit substrate 30 has the distribution 31 of the signal that is provided for driving each piezoelectric element 11.In the present embodiment, constituted and be used for piezoelectric element 11 and make oscillating plate 60 produce the piezo-activator of distortion, constituted piezoelectric element unit 10 by piezoelectric element 11 and fixing base 14.
And, on head capsule body 70, being fixed with wiring substrate 33, each distribution 31 that described wiring substrate 33 is provided with circuit substrate 30 connects a plurality of conductive junction points 32 with it respectively, and the accommodation section 71 of head capsule body 70 is blocked by this wiring substrate 33 in fact.The zone relative with the accommodation section 71 of head capsule body 70 forms the peristome 34 of slit-shaped on wiring substrate 33, circuit substrate 30 from peristome 34 bendings of this wiring substrate 33 to the accommodation section 71 the outside and being drawn out.
The circuit substrate 30 that constitutes piezoelectric element unit 10 for example is made of the brilliant film (COF, Chip onFilm) that covers that the drive IC (not shown) that is used to drive piezoelectric element 11 is installed in the present embodiment.And each distribution 31 of circuit substrate 30 for example forms material 16,17 by soldering or anisotropic conductive material etc. via outer electrode and the electrode that constitutes piezoelectric element 11 in its base end part side and is connected.On the other hand, in its top ends side, each distribution 31 engages with each conductive junction point 32 of wiring substrate 33.Specifically, the top ends of circuit substrate 30 in the outside that is pulled out to accommodation section 71 at the peristome 34 from wiring substrate 33 is along the surface of wiring substrate 33 and under by the state of bending, each distribution 31 is engaged with each conductive junction point 32 of wiring substrate 33.
In such ink jet recording head 100, in ejection during ink droplet, the distortion by piezoelectric element 11 and oscillating plate 60 changes the volume of each pressure generating chamber 52, thereby from predetermined nozzle opening 55 ejection ink droplets.Specifically, when illustrated print cartridge never when manifold 53 provides ink, distribute inks via ink feed road 54 to each pressure generating chamber 52.In fact by apply voltage to piezoelectric element 11 piezoelectric element 11 is shunk.Thus, oscillating plate 60 deforms with piezoelectric element 11, and the volume of pressure generating chamber 52 is extended, and ink is introduced in the pressure generating chamber 52.And, be full of inside at ink after reaching nozzle opening 55, remove the voltage on the electrode formation material 16 and 17 that is applied to piezoelectric element 11 according to the tracer signal that is provided via wiring substrate 33.Thus, piezoelectric element 11 is extended and is returned to original state, and oscillating plate 60 also displacement takes place and turns back to original state simultaneously.Consequently, the volume of pressure generating chamber 52 shrinks, and the pressure in the pressure generating chamber 52 uprises, from nozzle opening 55 ejection ink droplets.
In the present embodiment, when heating portion 67 was applied voltage, 67 heatings of heating portion can be heated to the ink that offers manifold 53 predetermined temperature.Thus, the viscosity of full-bodied ink is reduced, ink can flow out easily and offer nozzle opening 55.In addition,, can suppress the deviation of the spray volume of each nozzle by making the equalizing temperature of the ink in the manifold 53, thereby from the ink droplet of each nozzle opening 55 with the uniform amount of even velocity ejection.In the present embodiment, in the manifold 53 before being in pressure generating chamber 52, because can heating ink, therefore the ink of uniform temperature can be provided, and the temperature of the ink of pressure generating chamber 52 can be easily adjusted to each pressure generating chamber 52.
In addition,, can easily the heat that is produced by heating portion 67 be passed to the ink in the manifold 53, can make ink become the temperature of hope by enough less heats by on the elastic membrane 61 that constitutes by film, forming heating portion 67.
In addition, (specifically corresponding with manifold 53 zone) has heating portion 67 in the inside of each ink jet recording head 100, thereby when also can be in each ink jet recording head 100 when inkjet recording device is installed a plurality of ink jet recording head the ink of pressure generating chamber 52 being adjusted to predetermined temperature.Therefore, can become the difference of the spray volume that can suppress each ink jet recording head, liquid injection apparatus with good ejection characteristic.
Embodiment 2
Fig. 4 is the plane of sealing plate (oscillating plate 60) of ink jet recording head of an example of the jet head liquid that relates to as embodiments of the present invention 2.In addition, Fig. 5 is the block diagram of the control of the ink jet recording head that relates to of expression embodiments of the present invention 2.In addition, to the identical label of the parts mark identical and the repetitive description thereof will be omitted with above-mentioned embodiment 1.
As shown in Figure 4, go up at flexible part 65 (elastic membrane 61), be the zone relative on the elastic membrane 61, be provided with first 67A of heating portion, second 67B of heating portion, the 3rd 67C of heating portion, the 4th 67D of heating portion that constitute by metal pattern respectively independently with manifold 53.Each heating portion 67 has not shown power supply respectively, can apply predetermined voltage according to the caloric value signal from control part 80 (with reference to figure 5) input.
In addition, in manifold 53, be provided with the temperature detecting unit of the ink temperature that is used to detect the precalculated position in the manifold 53.In the present embodiment, as temperature detecting unit serviceability temperature sensor.The ink temperature in the precalculated position in the detected manifold 53 of temperature sensor (temperature detecting unit) is sent to control part 80 described later.
Here, use Fig. 5 that control part and caloric value signal are described.
As shown in Figure 5, the ink temperature in the precalculated position in the detected manifold 53 of each temperature sensor 69 (69A, 69B, 69C, 69D) is as temperature signal S1 (S1
A, S1
B, S1
C, S1
D) and be imported into control part 80.And control part 80 decides the caloric value of each heating portion 67 (67A, 67B, 67C, 67D) based on temperature signal S1 in the uniform mode of ink temperature in the manifold 53, and generates the caloric value signal S2 (S2 that is used to drive each heating portion 67
A, S2
B, S2
C, S2
D).The caloric value signal S2 that is generated is imported into the power supply of each heating portion 67 (67A, 67B, 67C, 67D).Thus, each heating portion 67 heating.Here, the control method of the heating of each heating portion 67 is not specially limited, and can adjust the turn-on time of the power supply of each heating portion 67, can change voltage or pulse etc. at each heating portion 67 yet.
In the present embodiment, in manifold 53, have a plurality of temperature sensors 69 (temperature detecting unit), control the caloric value of heating portion based on the testing result of temperature sensor.Thus, can make ink temperature homogenising reliably in the manifold 53.Therefore, the liquid of even temperature can be provided to each nozzle opening more reliably.
Exist following: spray ink in certain nozzle rows, at the less ink of other nozzle rows ejection etc. according to the different situation of each nozzle rows behaviour in service of printed data morely.Following problem is arranged: can keep the temperature of being scheduled in the corresponding position of the many nozzle rows of manifold 53 and spray volume ink, but can reduce in the corresponding position temperature of the few nozzle rows of manifold 53 and spray volume ink in ink jet recording head in the past.In the ink jet recording head of present embodiment, control the caloric value of each heating portion 67 by the temperature of the ink in the feedback manifold 53, not by about the spray volume of ink (flow of ink) institute, can remain the temperature of each position in the manifold 53 constant thus.
In addition, if usually ink exceedingly heats, then its character meeting deterioration, printing quality reduce, but in the present embodiment, the caloric value of heating portion 67 can be suitably adjusted according to the ink temperatures in the manifold 53, so the reduction of the quality of the ink that causes owing to excessive heating can be suppressed.
In addition, because ink is supplied from ink feed hole 66, therefore, compare the caloric value height with other parts near the ink feed hole 66 of preferred manifold 53 for ink heating to being supplied.In the present embodiment, have a plurality of heating portion 67,, can caloric value be changed according to the position by being set up independently respectively.For example, can make the caloric value of second 67B of heating portion and the 3rd 67C of heating portion more than the caloric value of first 67A of heating portion and the 4th 67D of heating portion.
In addition, the ink jet recording head 100 of present embodiment has two liquid flow paths, is flow into each manifold 53 with the corresponding new ink of the amount of sprayed ink.It is many that the liquid flow path that the spray volume of ink is many flow into the quantitative change of ink of manifold 53, the heat that needs for the temperature that becomes hope is many, relative therewith, at the few liquid flow path of the spray volume of ink, owing to the amount of the ink that flow into manifold 53 is few, therefore the heat that needs for the temperature that becomes hope is few.In the present embodiment, according to the testing result of the ink temperature of each manifold 53, be that caloric value can be suitably adjusted in the variation of ink temperature.Therefore, can make the ink temperature of each liquid flow path become the temperature of hope.
Other embodiment
More than, embodiments of the present invention 1 are illustrated, but basic formation of the present invention is not limited to above-mentioned embodiment.For example in above-mentioned embodiment 1 and 2, zone relative with manifold 53 on the elastic membrane 61 of oscillating plate 60 is provided with length and width heating uniformly portion 67, but is not limited thereto, and length and width also can be according to scopes and different.
For example, also can be shown in Fig. 6 (a), the 67E of heating portion makes the 67E of heating portion exist thick and fast near the ink feed hole 66 length being made as near the spacing (at interval) of growing, promptly dwindle sinuous heating portion 67 ink feed hole 66, can make caloric value many thus.Near the ink feed hole 66 that imports ink, the temperature of ink reduces easily, but passes through the length of the 67E of heating portion in lengthening ink feed hole 66 near, thereby the heating quantitative change is many, can suppress the reduction of the temperature of ink well.The ink of uniform temperature can be provided reliably to pressure generating chamber 52 thus.In addition, also can shown in Fig. 6 (b), make the 67F of heating portion near ink feed hole 66, width be diminished, can make caloric value many thus.This situation also is same, can suppress near the reduction of the temperature of the ink the ink feed hole 66 well.And, make near heating portion width ink feed hole 66 little and length is long, can make caloric value many.
As mentioned above, in the scope that temperature reduces easily, can make width little, perhaps can make length long, but on the contrary in the scope that temperature is difficult to reduce, can make width big or can make the length weak point.So, heating portion 67 can be formed by change the caloric value that length or width obtain wishing according to preset range.
In embodiment 2, in manifold 53, be provided with temperature sensor 69, but temperature sensor 69 can be arranged on also in ink feed road 54 or the pressure generating chamber 52.
In addition, in embodiment 2, be provided with four heating portions 67, but the number of heating portion 67 is not limited thereto.
In addition, a plurality of heating portion 67 is set independently respectively in embodiment 2, can apply predetermined voltage based on the temperature detection result of each self-corresponding temperature sensor 69, but the number of temperature sensor 69 is not defined to this.For example, under the situation that the number of temperature sensor 69 lacks than the number of heating portion 67, by the stream length of considering prediction manifold 53 or the liquid emitted dose that sprays from each nozzle rows, how the prediction ink temperature changes in each position in manifold 53, suitably sets the caloric value of each heating portion 67.
In addition, in the above-described embodiment, replace lamination and its piezoelectric element 11 in the extensional vibration type of axial stretching is illustrated making piezoelectric material layer 15 and electrode form material 16,17, but be not to be defined to this especially, for example can use on substrate (stream formation substrate) piezoelectric element of the flexible vibration type of lamination first electrode, piezoelectric material layer and second electrode successively yet.
In example shown in Figure 1, ink jet recording head unit 1A, 1B have an ink jet recording head 100 respectively, but are not specially limited in this, for example also can be that 1 ink jet recording head unit 1A or 1B have the ink jet recording head more than 2.
And in the above-described embodiment, the ink jet recording head 100 of illustration ejection ink droplet describes the present invention, and the present invention is an object with all liq injector head widely.For example can exemplify with inferior as jet head liquid: use at the record head on the image recording structures such as printer, use colorant injector head in the manufacturing at the colour filter of LCD etc., use electrode material injector head that the electrode at OLED display or FED (electroluminescent display) etc. forms, use the biological organic matter injector head in the biochip manufacturing.
Claims (10)
1. jet head liquid comprises:
Pressure generating chamber is communicated with the nozzle opening of ejection liquid;
The pressure generation unit changes the pressure of the liquid in the described pressure generating chamber;
Manifold, described menifold are the shared liquid chambers of a plurality of pressure generating chamber;
Flexible film constitutes at least a portion that covers described manifold; And
Heating portion is formed on relative with the described manifold zone on the described flexible film and is formed by metal pattern.
2. jet head liquid as claimed in claim 1, wherein,
The caloric value of described heating portion is at each preset range and difference.
3. jet head liquid as claimed in claim 1, wherein,
Described heating portion is a thread like body, and its width is at each described preset range and difference.
4. jet head liquid as claimed in claim 2, wherein,
Described heating portion is a thread like body, and its length is at each described preset range and difference.
5. jet head liquid as claimed in claim 1, wherein,
With the described manifold relative zone of described heating portion on described flexible film is set up a plurality of,
Described jet head liquid also comprises the control part of the caloric value of controlling each heating portion independently.
6. jet head liquid as claimed in claim 1 wherein, also comprises:
Temperature detecting unit detects the temperature in the liquid flow path that comprises described pressure generating chamber and described manifold,
Described control part is controlled the caloric value of each heating portion based on the testing result of described temperature detecting unit.
7. jet head liquid as claimed in claim 1, wherein,
Described heating portion extends from the zone relative with described manifold and is set to outside this zone.
8. a liquid ejecting head unit comprises the described jet head liquid of claim 1.
9. a liquid injection apparatus comprises the described jet head liquid of claim 1.
10. a liquid injection apparatus comprises the described liquid ejecting head unit of claim 8.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-077515 | 2010-03-30 | ||
| JP2010077515A JP2011207077A (en) | 2010-03-30 | 2010-03-30 | Liquid ejecting head, liquid ejecting head unit, and liquid ejecting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102233730A true CN102233730A (en) | 2011-11-09 |
| CN102233730B CN102233730B (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110083770.3A Expired - Fee Related CN102233730B (en) | 2010-03-30 | 2011-03-30 | Jet head liquid, liquid ejecting head unit and liquid injection apparatus |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8870353B2 (en) |
| JP (1) | JP2011207077A (en) |
| CN (1) | CN102233730B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6150673B2 (en) * | 2013-08-27 | 2017-06-21 | キヤノン株式会社 | Liquid discharge head substrate, liquid discharge head, and recording apparatus. |
| US10214014B2 (en) * | 2016-02-12 | 2019-02-26 | Canon Kabushiki Kaisha | Liquid ejection head and liquid ejection apparatus |
| JP7005143B2 (en) * | 2016-02-12 | 2022-01-21 | キヤノン株式会社 | Liquid discharge head and liquid discharge device |
| JP7255122B2 (en) * | 2018-09-28 | 2023-04-11 | ブラザー工業株式会社 | Liquid ejector |
| JP7310230B2 (en) * | 2019-04-01 | 2023-07-19 | ブラザー工業株式会社 | liquid ejection head |
| JP7279477B2 (en) * | 2019-04-04 | 2023-05-23 | ブラザー工業株式会社 | liquid ejection head |
| JP7196740B2 (en) * | 2019-04-04 | 2022-12-27 | ブラザー工業株式会社 | liquid ejection head |
| JP7371358B2 (en) * | 2019-06-10 | 2023-10-31 | ブラザー工業株式会社 | liquid jet head |
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| US20080030554A1 (en) * | 2006-08-02 | 2008-02-07 | Brother Kogyo Kabushiki Kaisha | Liquid transporting apparatus and ink-jet printer |
| JP2008055899A (en) * | 2006-08-02 | 2008-03-13 | Brother Ind Ltd | Liquid transferring apparatus and inkjet printer |
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2010
- 2010-03-30 JP JP2010077515A patent/JP2011207077A/en not_active Withdrawn
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2011
- 2011-03-29 US US13/075,146 patent/US8870353B2/en not_active Expired - Fee Related
- 2011-03-30 CN CN201110083770.3A patent/CN102233730B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| US5191360A (en) * | 1988-12-14 | 1993-03-02 | Mannesmann Aktiengesellschaft | Heating device for heating the ink in the printing head of an ink jet printer |
| US5424767A (en) * | 1993-03-02 | 1995-06-13 | Tektronix, Inc. | Apparatus and method for heating ink to a uniform temperature in a multiple-orifice phase-change ink-jet print head |
| JP2003062997A (en) * | 2001-08-27 | 2003-03-05 | Ricoh Co Ltd | Liquid droplet ejecting head and head driving unit |
| CN1616232A (en) * | 2003-10-24 | 2005-05-18 | 索尼株式会社 | Liquid spray head, liquid spray device and method for producing said liquid spray head |
| US20080030554A1 (en) * | 2006-08-02 | 2008-02-07 | Brother Kogyo Kabushiki Kaisha | Liquid transporting apparatus and ink-jet printer |
| JP2008055899A (en) * | 2006-08-02 | 2008-03-13 | Brother Ind Ltd | Liquid transferring apparatus and inkjet printer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102233730B (en) | 2016-03-23 |
| US8870353B2 (en) | 2014-10-28 |
| JP2011207077A (en) | 2011-10-20 |
| US20110242185A1 (en) | 2011-10-06 |
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